aboutsummaryrefslogtreecommitdiff
path: root/kernel/trace/trace_event_profile.c
diff options
context:
space:
mode:
authorLi Zefan <lizf@cn.fujitsu.com>2009-12-08 11:17:29 +0800
committerFrederic Weisbecker <fweisbec@gmail.com>2009-12-13 18:37:28 +0100
commite00bf2ec60605eb95687b7a0c3b83c87c48541dc (patch)
treee0b63423355286bc14cee438b39e9ba681f7327a /kernel/trace/trace_event_profile.c
parent8d18eaaff5acaa58369be342c86e607643ce10c7 (diff)
tracing: Change event->profile_count to be int type
Like total_profile_count, struct ftrace_event_call::profile_count is protected by event_mutex, so it doesn't need to be atomic_t. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@redhat.com> Cc: Masami Hiramatsu <mhiramat@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <4B1DC549.5010705@cn.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/trace/trace_event_profile.c')
-rw-r--r--kernel/trace/trace_event_profile.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/trace/trace_event_profile.c b/kernel/trace/trace_event_profile.c
index d9c60f80aa0..9e25573242c 100644
--- a/kernel/trace/trace_event_profile.c
+++ b/kernel/trace/trace_event_profile.c
@@ -25,7 +25,7 @@ static int ftrace_profile_enable_event(struct ftrace_event_call *event)
char *buf;
int ret = -ENOMEM;
- if (atomic_inc_return(&event->profile_count))
+ if (event->profile_count++ > 0)
return 0;
if (!total_profile_count) {
@@ -56,7 +56,7 @@ fail_buf_nmi:
perf_trace_buf = NULL;
}
fail_buf:
- atomic_dec(&event->profile_count);
+ event->profile_count--;
return ret;
}
@@ -83,7 +83,7 @@ static void ftrace_profile_disable_event(struct ftrace_event_call *event)
{
char *buf, *nmi_buf;
- if (!atomic_add_negative(-1, &event->profile_count))
+ if (--event->profile_count > 0)
return;
event->profile_disable(event);